From 29cb957b226d47f7aff8ee8bc187e3d5d59ad75d Mon Sep 17 00:00:00 2001
From: Rob Andrews <rob.andrews@mayden.co.uk>
Date: Thu, 2 Feb 2017 10:18:08 +0000
Subject: [PATCH] send DB_ERROR_UNSUPPORTED if seeking in pdo_mysql

---
 src/DB/Driver/DoctrineDbal.php | 12 ++++++++++++
 src/DB/Driver/PdoDriver.php    | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/DB/Driver/DoctrineDbal.php b/src/DB/Driver/DoctrineDbal.php
index 68d6357..ebc9acb 100644
--- a/src/DB/Driver/DoctrineDbal.php
+++ b/src/DB/Driver/DoctrineDbal.php
@@ -164,6 +164,18 @@ public function simpleQuery($query)
      */
     public function fetchInto(StatementContainer $result, &$arr, $fetchmode, $rownum = null)
     {
+        // @codeCoverageIgnoreStart
+        // This is not coverable by integration tests
+        if (isset($rownum) && ($rownum !== null) && ($this->getPlatform() === 'mysql')) {
+            return $this->raiseError(
+                DB::DB_ERROR_UNSUPPORTED,
+                null,
+                null,
+                'pdo_mysql does not support cursor seeking'
+            );
+        }
+        // @codeCoverageIgnoreEnd
+
         if ($fetchmode & DB::DB_FETCHMODE_ASSOC) {
             $arr = self::getStatement($result)->fetch(PDO::FETCH_ASSOC, null, $rownum);
             if (($this->options['portability'] & DB::DB_PORTABILITY_LOWERCASE) && $arr) {
diff --git a/src/DB/Driver/PdoDriver.php b/src/DB/Driver/PdoDriver.php
index a52eaa1..fba3895 100644
--- a/src/DB/Driver/PdoDriver.php
+++ b/src/DB/Driver/PdoDriver.php
@@ -203,6 +203,18 @@ private static function formatErrorInfo(array $errorInfo)
      */
     public function fetchInto(StatementContainer $result, &$arr, $fetchmode, $rownum = null)
     {
+        // @codeCoverageIgnoreStart
+        // This is not coverable by integration tests
+        if (isset($rownum) && ($rownum !== null) && ($this->getPlatform() === 'mysql')) {
+            return $this->raiseError(
+                DB::DB_ERROR_UNSUPPORTED,
+                null,
+                null,
+                'pdo_mysql does not support cursor seeking'
+            );
+        }
+        // @codeCoverageIgnoreEnd
+
         if ($fetchmode & DB::DB_FETCHMODE_ASSOC) {
             $arr = self::getStatement($result)->fetch(PDO::FETCH_ASSOC, null, $rownum);
             if (($this->options['portability'] & DB::DB_PORTABILITY_LOWERCASE) && $arr) {